2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 61254 Aroclor 1254 in Transformer Oil Price on request 70036 Benzyl butyl phthalate Price on request 677001 Benalaxyl-M, 10mg Price on request